Preliminary Allocation of Purchase Price to Fair Values of Assets Acquired and Liabilities Assumed (Detail) (USD $) In Thousands, unless otherwise specified	1 Months Ended
	Feb. 28, 2015	Mar. 28, 2015	Dec. 31, 2014
Intangible assets
Goodwill		$ 25,761	$ 19,205
ARAS
Tangible assets acquired:
Accounts receivable	269
Other assets	9
Total assets acquired	278
Liabilities assumed:
Accounts payable and accrued liabilities	41
Other liabilities	210
Total liabilities assumed	251
Intangible assets
Intangible assets	5,351
Net assets acquired	5,378
Deferred tax liability	1,385
Purchase price, net cash of acquired	7,640
Contingent consideration	808
Goodwill	4,455
ARAS | Trade Names
Intangible assets
Intangible assets	509
ARAS | Noncompete Agreements
Intangible assets
Intangible assets	540
ARAS | Technology-Based Intangible Assets
Intangible assets
Intangible assets	2,052
ARAS | Customer Relationships
Intangible assets
Intangible assets	2,250
Kubit GmbH
Tangible assets acquired:
Accounts receivable		250
Other assets		246
Total assets acquired		496
Liabilities assumed:
Accounts payable and accrued liabilities		315
Other liabilities		353
Total liabilities assumed		668
Intangible assets
Intangible assets		2,590
Net assets acquired		2,418
Deferred tax liability		669
Purchase price, net cash of acquired		4,371
Contingent consideration		987
Goodwill		3,609
Kubit GmbH | Trade Names
Intangible assets
Intangible assets		658
Kubit GmbH | Noncompete Agreements
Intangible assets
Intangible assets		272
Kubit GmbH | Technology-Based Intangible Assets
Intangible assets
Intangible assets		945
Kubit GmbH | Customer Relationships
Intangible assets
Intangible assets		$ 715